*{
    margin: 0px;
padding: 0px;
}
div{
    margin: 0 auto;
    border: 1px solid;
    width: 70%;
    height: 100px;
    border-radius: 15px 15px 15px 15px;
    font-size: 15px;
    background-color: rgba(84, 179, 81, 0.671);
    color: wheat;
    font-family: 宋体;
}
#ca{
    background-color: black;
}
p{
text-indent: 5em;  
line-height: 32px;
}
div:hover{
    cursor: pointer;
    color: rgb(121, 59, 120);
    font-size: 20px;
    transition:all .4s;
    -moz-transition:all .4s;
	-webkit-transition:all .4s;
	-o-transition:all .4s;
}



div>:nth-child(2), div>:nth-child(2):hover{
    font-size: 15px;
}
